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Home > Encyclopedia > 3,5-dibromo-4-nitro-1H-pyrazole

3,5-dibromo-4-nitro-1H-pyrazole

3,5-dibromo-4-nitro-1H-pyrazole structure

3,5-dibromo-4-nitro-1H-pyrazole 

structure
  • CAS No:

    104599-36-2

  • Formula:

    C3HBr2N3O2

  • Chemical Name:

    3,5-dibromo-4-nitro-1H-pyrazole

  • Synonyms:

    3,5-dibromo-4-nitro-1H-pyrazole;3,5-Dibromo-4-nitropyrazole;3,5-Dibromo-4-Nitro-1H-Pyrazole3,5-Dibromo-4-Nitro-1H-Pyrazole

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

3,5-dibromo-4-nitro-1H-pyrazole Basic Attributes

270.88

268.84400

DTXSID90547292

2933199090

Characteristics

74.5

2.1

2.575g/cm3

168-170°

152.4ºC

1.701

Safety Information

IRRITANT

3,5-dibromo-4-nitro-1H-pyrazole Use and Manufacturing

General procedure: 3, 4, 5-Tribromopyrazole (9a; 762 mg, 2.5 mmol) or General procedure: 3, 4, 5-Tribromopyrazole (9a; 762 mg, 2.5 mmol) or Example B 3-Methoxy-1-propyl-1H-pyrazole-4, 5-diamine, obtainable from the following synthetic strategy: Treatment of Example D 8-Methoxy-1, 2, 4, 5-tetrahydropyrazolo[5, 1-d][1, 3, 5]oxadiazepin-9-amine, obtainable from the following synthetic strategy: Treatment of 2-(5-amino-3-bromo-4-nitro-1H-pyrazol-1-yl)ethanol 1 with paraformaldehyde and sodium triacetoxyborohydride in dichloroethane containing acetic acid affords 8-bromo-9-nitro-1, 2, 4, 5-tetrahydropyrazolo[5, 1-d][1, 3, 5]oxadiazepine 2.Example D 8-Methoxy-1, 2, 4, 5-tetrahydropyrazolo[5, 1-d][1, 3, 5]oxadiazepin-9-amine, obtainable from the following synthetic strategy: Treatment of 2-(5-amino-3-bromo-4-nitro-1H-pyrazol-1-yl)ethanol 1 with paraformaldehyde and sodium triacetoxyborohydride in dichloroethane containing acetic acid affords 8-bromo-9-nitro-1, 2, 4, 5-tetrahydropyrazolo[5, 1-d][1, 3, 5]oxadiazepine 2.Example A 4, 5-Diamino-1-methyl-1H-pyrazole-3-carbonitrile, obtainable from the following synthesis strategy: Preparation of 3, 5-dibromo-1-methyl-4-nitro-1H-pyrazole (2): To a solution of Example F 1-Methyl-3-phenoxy-1H-pyrazole-4, 5-diamine, obtainable from the following synthetic strategy: Treatment of Example C 2-(4, 5-Diamino-3-bromo-1H-pyrazol-1-yl)ethanol, obtainable from the following synthetic strategy: Treatment of Example C 2-(4, 5-Diamino-3-bromo-1H-pyrazol-1-yl)ethanol, obtainable from the following synthetic strategy: Treatment of

Computed Properties

Molecular Weight:270.87
XLogP3:2.1
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Exact Mass:270.84150
Monoisotopic Mass:268.84355
Topological Polar Surface Area:74.5
Heavy Atom Count:10
Complexity:149
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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